3186 Broken Hour Wheel Click Spring

[RastabanStar]

I have an Explorer 2 16750 with a 3186 Movement. The hour wheel click spring recently broke so that when I move the crown to the 2nd position, the hour hand moves smoothly instead of clicking from hour to hour. It also does not line up correctly with the minute hand. After researching the boards, I see that this is a common, known issue by Rolex.

What should I expect to pay for RSC to fix the spring, given that this is a know manufacturing problem? I prefer not to send my watches to RSC as I don't want any polishing or dial/hand replacement. Finally, will a new replacement spring fix the problem or should I expect this to remain a weakness throughout the life of the watch?